Low loss fiber optic harness

Abstract

The present arrangement provides for a fiber optic arrangement having at least one light transmitting device, at least one light receiving device, and at least one light path between the light transmitting device and the light receiving device. The light path has first and second segments, each having first and second fiber optic element respectively, with the first segment being located proximate to the light transmitting device and where the second segment is located proximate to the light receiving device. A first fiber optic element of the first segment of the light path has a first dimension, and a second fiber optic element of the second segment of the light path has a second dimension larger than the dimension of the first fiber optic element of the first segment.

1 . A fiber optic arrangement comprising:
 first and second light transceiving devices; and   at least two light paths between said first and second transceiving devices, connecting through a trunk, one said light path going in a first direction from said first transceiver to said second transceiver and a second of said light paths going in the opposite direction from said second transceiver to said first transceiver,   said light paths each having at least first and second segments on either side of said trunk between said transceivers,   wherein said trunk has connecting fiber elements for both of said light paths, said trunk connecting fiber elements having a first dimension,   wherein for said first light path, said first segment is located proximate to a light transmitting device of said first transceiver and has a dimension lesser than said dimension of said trunk connecting fiber elements and   wherein said second segment is located proximate to a light receiving device of said second transceiver and has a dimension greater than said dimension of said trunk connecting fiber elements;   wherein for said second light path going in the opposite direction, said first segment is located proximate to a light transmit tin device of said second transceivers and has a dimension lesser than said dimension of said trunk connecting fiber elements and   wherein said second segment is located proximate to a light receiving device of said first transceiver and has a dimension greater than said dimension of said trunk connecting fiber elements.   
     
     
         2 . The fiber optic arrangement as claimed in  claim 1  wherein each of said first and second segments of said light paths on either side of said trunk has a numerical aperture (NA) and a core diameter (CD). 
     
     
         3 . (canceled) 
     
     
         4 . The fiber optic arrangement as claimed in  claim 3  wherein said numerical apertures (NA) and a core diameters (CD) of said first and second fiber optic element of said first segments of said light paths are less than the numerical aperture (NA) and a core diameter (CD) of both said trunk and said second fiber optic element of said second segments of said light paths. 
     
     
         5 . The fiber optic arrangement as claimed in  claim 1 , wherein said dimension of said first fiber optic elements relative to said first dimension of said trunk and said dimension of said second fiber optic elements is such that signal power losses in said light paths is less than 0.75 dB per connection. 
     
     
         6 - 8 . (canceled)